richmond



v(No Model.) 3 Sheets-Sheet 1.

J. RICHMOND 8v T. BIRT-WISTLE.

EURNAGE EUR TREA'IfING TOWN AND OTHER REFUSE.

No. 372,172. Patented 001;. 25, 1887.

FIG.`1.

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(No Model.) 3 Sheets-Sheet 2.

* J. RICHMOND &T. B IRTWISTLE. FUBNAGE FOB, TREATING TOWN AND OTHER REFUSE.

No. 372,172. Patented Oot. 25, 1887.

FIG.4

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(No Model.) 3 Sheets-Sheet 3. v

' J. RICHMOND. 8v T. BIRTWISTLE.

EUENAGE EDE TEEATING TOWN AND OTEEE EEEUSE.

No.372,172. Fl Patented.00tz5,1a87.

2 NEEN? AVV lliurreio STATES Parietti* OFFICE.

JAMES RICHMOND AND THOMAS BIRTWISTLE, OF BURNLEY, COUNTY OF LANCASTER, ENGLAND.

FURNAOE FOR T REATING TOWN AND OTHER REFUSE.

SPECIFICATION forming part of Letters Patent No. 372,172, dated October 25, 1887.

Application tiled December 2;, 1886. Serial No. 222,824. (No model.) Patanted in England February 11, 1885, No. 1,591.

To @ZZ whom it may concern:

Be it known that'we, JAMEs RICHMOND, of Mosley House, Burnley, in the county of Lancaster,England, gentleman, and THOMAS BIRT- WIsTLE, of Belvedere Road, Burnley, aforesaid, irorrmongerfhave invented certain new and useful Improvements in Furnaces for Treating Town and other Refuse, (for which we have obtained a patent in Great Britain, No. 1,891, dated February 11, 1885;) and We do hereby declare that the following is a full, clear, and exact description of the same.

This invention has for its object to provide a novel furnace for drying and burning refuse orgarbage and to purify the noxious gases therefrom; and to such end the invention consists in the novel construction and arrangement, hereinafter described and claimed, reference being made to the accompanying drawings, in which- Figure 1 is a front elevation of afurnace en1- bodying our invention; Fig. 2,asectional plan view taken on the line A A, Fig. 1; Fig. 3, a vertical sectional View taken on the line B B, Fig. 2; Fig. 4, a transverse sectional view taken on the line C C, Fig. 2; Fig. 5, asimilar section taken on the line D D, Fig. 2; Fig. 6, a similar view taken on the line E E, Fig. 2; Fig. 7, a sectional plan View taken on the line F F, Fig. 8, showing a moditication of the in" vention; Fig. 8, avertical sectional view taken on the line A B, Fig. 7, and Fig. 9 a transverse sectional View taken on the line C D, Fig. 7.

In the drawings, theletters a, b, and c (seen in Fig. 2) are the drying sheds and hearths, into and upon each of which refuse is deposited and consumed by the flames and heated gases evolved in the combustion chambers d, e, and f. (Seen in Fig. 3.)

To assist in the distillation offthe refuse, a continuous current of air is conducted from the exterior through the openings or passages e', (seen in Figs. 1, 2, and 3,) from which it is deflected and discharged through the deiiectingslits e2, formed in the sides and division- Walls ofthe combustion-chambers and dryinghearths, into the mass of burning fuel upon the grating g, (seen in Figs. 2, 3, and 4,) and upon the refuse, and thereby produces an intense heat, Which is most essential for thel effectual destruction of the refuse under treatment.

The di ying-hcarths,when constructed on the incline, are preferably arranged stepwise, as seen in Fig. 4,and provided with passages or apertures e3 and e, to convey a current of air from the exterior to the refuse drying and burning on the hearths preparatory/'to being drawn into the combustion chambers to be finally consumed. Fuel is fed into the furnace in the first instance,or when commencing operations for the combustion of the refuse, through doors f', (seen in Fig. 1,) upon the grating g in each combustioirchamber until the refuse upon the hearths is sufficiently dry t0 serve as fuel, after Which it is from time to time drawn down by a rake or other instrument upon the grating in the combustionchambers and consumed.

The darne and heated gases evolved from the refuse in the combustion-chamber d (seen in Fig. 3) are conveyed over the refuse deposited upon the hearth in the dryingshed a, (seen iin-Fig. 2,) and forward over the refuse on the hearth in the shed b,where they mingle with the flame and heated gases proceeding from the combustion-chamber e. The heated gases now pass over the refuse on the hearth in the drying-shed c. (Seen in Fig. 2.) Where the gases from the several furnace-chambers join together at each place or shed the heat is most effective into which the refuse most difiicult to burn may be deposited.

The hearth in the dryingshed c may be on the fiat instead of on the rake or incline, as seen in Fig. 4. On this hearth may be deposited ashes impregnated with night-soil, liquidexcreta, pail contents, or other objectionable sloppy matter, Which are evaporated by the intense heatin this compartment,when the residium thereof is drawn with the dried ashes into the combustion-chambery and consumed.

We will now describe more fully the arrangement of the well j, Fig. 5, coke-furnace h, Fig. 6, and the communicating ilues which convey the gases through the same to insure a thorough purification of the gases from fumes and vapors evolved during the combustion of the refuse.

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The heated gases collecting in the last compartnient or shed, c, (seeuin Fig. 2,) are con veyed through the opening l (seen in Fig. 4) into the diving-tine k (seen in Figs. 2, it, and 5) and downward are led over combustible liquid which iioatson the surface ofthe water contained in the weil j, whereby aconsiderA able reduction is insured of the noxious fumes' and vapors. In close proximity tothe well is a petroleum-tank, I, to supply the wellwith combustible liquid down pipe v, as may be rcquired. This well is provided with a channel or gutter, my, and stcnchftrap a," by which means the. liquid portion contained in the well may be drawn offat any time for cleaning pur poses, and sundry accumulations ol' solid matter deposited by the currents of heated gases in the shape of ashes or refuse may be re moved through the mud or man hole o, (seen in Fig.' 5,) when deemed expedient. Haring new passed over the combustible liquid in the well, the gases are from thence conveyed through the opening p (seen in Figs. 3 and 5) above the grating r, (seen in Figs. 3 and 6,) upon which the consumable portionof solid matter still suspended andearried with the,

currents of heated gases gradually settle and burn away by slow eombnstion,while the gases, continuing their course to the chimney, pass over a ookeitire burning on the inclined hearth t behind the grating r, (seen in Fig. 6,.) wherebythe fumes aiulvapors esisting'aniong the gases after traversing the combustible liquid are mest thoroughly consumed.

A supply of coke or other suitable fuel is charged from time to time, to maintain the lire, through the opening s (seen in Fig. 6) in the roof of the furnace, and a continuous current of air enters the airlpassages x (seen in Fig. 2) through the opening u1, (seen in Figs. 2 and 3,) and is discharged into the burning coke in like manner as described in reference to the slits and air-passages in the side and division walls of the combustion-chambers.

In the construction shown in Figs. 7, S, and 9 the heated gases to be purified, proceeding from the furnaces and drying-sheds, pass down the diving-flue s', through channels or passages s2, under and over arch s, into channels or passages s, and from thence are conveyed through liuc si and outlglfito the chimney.

The serpentine course of the gases through the passages and lines, as indicated by arrows, imparts to the surrounding material, which is of lire-clay or other suitable material, a considerable amount of heat. whereby an effective combustion of noxious fumes and vapors is insured.

An elevated roadway may be constructed, so that carts may convey the refuse to be consumed to the platform q, (seen in Fig. 4,) where it is tipped and discharged upon the drying-hearths through openings y, (seen in Fig..2,).formed between the projecting heads of brick-work e, which also separate and divide the longitudinal space behind the combustionchambers (l, c, audf. The openings i/(seen in Fig. 2) maybe closed by balanced-doors; or the refuse may be made to choke up the entrance to the said openings while the refuse is under combustion.

Having now particularly described and ascertained the nature of our said invention and in what manner the same is to be performed, we declare that what we claim isl. A rei`useburning furnace having a series of gratos, y, combustionebambers cl cf, drying-hearths a, l) c, behind. and communicating, respectively, Awith the combustioirehambers, upon which gratos the refuse can be drawn when dried, the vertical and lateral passages c' and e, for delivering air to the eombustionchambers and dryiiig-cliainbers,tlie diving-[lue It', the wellj, communicating with the lower end of the diving-tine, for containing water and a Heating combustible liquid, theeoliechaniber la, the grating r, and the passages w and x, for supplying air tothe coke-chamber, subslantiully as described.

2. A refuse-burning furnace having a series ot' gratos, g, combastion-chambers (l c f, drying-hearths a b c, behind and directly comniunieating,respeetively,with the conibust-ionchambers, upon which gratos the refuse can bedrawn when dried, the vertical and lateral passages c', e2, for delivering air to the combustion-chambers, a` diving-tlue receiving. the

noxious gases evolved from the refuse, and a heating chalutier communicating with said diving-due for purifying the noxious gases as they pass through said heating-chamber to the chimney, substantially as described.

3. A refuse-burning furnace having a series of gratos. g, combustioirchambers cl c f, drying-hearths a b c, behind and in communication, respectively, with the combustion-chambers, the vertical and lateral passages e c2, for delivering air to the combustion-chambers and drying-hearths, the diving-Hue la, the well j, for containing water, the tank I, for containing a combustible tluid, a pipe. v, for delivering the said ilnid to the well, the coke-chainber h., the grating r, and the vertical and lateral passages w and @for delivering air to the cokechamber, substantially as described.

In testimony whereof we have hereunto set our hands the 3d day of August, 1886.

JAMES RICHMOND. THOMAS BIR'LWVISTLE.

iVitnesses:

\Vir. HULM, Clerk with ilcssrs. Ormcrofl d# Allen, Solicitors,

Manchester.

Trios. RICHMOND, Patent Agent, Burnley.

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